var xmlHttp

function stateChanged(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("txtHint").innerHTML=xmlHttp.responseText 
	} 
} 

function GetXmlHttpObject(handler){ 
	var objXmlHttp=null
	if (navigator.userAgent.indexOf("Opera")>=0){
		alert("This example doesn't work in Opera") 
		return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0){ 
		var strName="Msxml2.XMLHTTP"
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0){
			strName="Microsoft.XMLHTTP"
		} 

	try	{ 
		objXmlHttp=new ActiveXObject(strName)
		objXmlHttp.onreadystatechange=handler 
		return objXmlHttp
	}catch(e){ 
		alert("Error. Scripting for ActiveX might be disabled") 
		return 
	} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0){
		objXmlHttp=new XMLHttpRequest()
		objXmlHttp.onload=handler
		objXmlHttp.onerror=handler 
		return objXmlHttp
	}
} 